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EP2221260A2 - Elément de préhension destiné à saisir des récipients en plastique - Google Patents

Elément de préhension destiné à saisir des récipients en plastique Download PDF

Info

Publication number
EP2221260A2
EP2221260A2 EP10153776A EP10153776A EP2221260A2 EP 2221260 A2 EP2221260 A2 EP 2221260A2 EP 10153776 A EP10153776 A EP 10153776A EP 10153776 A EP10153776 A EP 10153776A EP 2221260 A2 EP2221260 A2 EP 2221260A2
Authority
EP
European Patent Office
Prior art keywords
gripping
holding elements
gripping element
piston body
holding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10153776A
Other languages
German (de)
English (en)
Other versions
EP2221260A3 (fr
Inventor
Thomas HÖLLRIEGL
Christian Wittmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krones AG filed Critical Krones AG
Publication of EP2221260A2 publication Critical patent/EP2221260A2/fr
Publication of EP2221260A3 publication Critical patent/EP2221260A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/90—Devices for picking-up and depositing articles or materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B29C49/42073—Grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B29C49/42093—Transporting apparatus, e.g. slides, wheels or conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0235—Containers
    • B65G2201/0244—Bottles

Definitions

  • the present invention relates to a gripping element for gripping plastic containers and in particular preforms.
  • Such preforms are used in the prior art to be expanded in the context of the manufacturing process to plastic containers, such as PET bottles.
  • the plastic preforms are first heated and then expanded in a blow molding machine. During this heating process, the preforms are transported with gripping elements.
  • the present invention is therefore an object of the invention to provide a gripping element available, which has larger tolerances with respect to the preforms or their Can handle mouth diameter. This is achieved according to the invention by gripping elements according to claim 1.
  • Advantageous embodiments and further developments are the subject of the dependent claims.
  • An inventive gripping element for gripping plastic containers and in particular of preforms has a carrier on which a gripping head is arranged, which is at least partially insertable into an orifice of the plastic container.
  • At least one retaining element is arranged on the gripping element, which is at least partially movable in a radial direction with respect to the gripping head and preferably pressed against the inner wall of the mouth to secure the container relative to the gripping head.
  • a mobility in a radial direction is meant that at least a portion of the holding member is movable at least also in the radial direction.
  • This can also be a movement which is inclined with respect to the radial direction or also a pivoting movement with respect to a predetermined axis.
  • the retaining element is movable in its entirety in a radial direction, but it would be possible other movements, in particular but not exclusively pivotal movements.
  • this holding element which can also move in the radial direction, a certain tolerance is made possible with respect to the containers to be gripped. In this way it is possible to process diameter differences of the container mouths up to +/- 3 mm.
  • At least two and preferably at least three holding elements are arranged on the gripping head.
  • a plurality of such holding elements larger tolerances can be processed on containers on the one hand even with relatively small radial movement, on the other hand can be achieved by a plurality of holding elements and a more stable hold of the container on the gripping head or the gripping element.
  • At least a portion of the holding element can be pressed against the inner wall of the mouth as a container. In this way, a secure hold of the container can be achieved.
  • the holding element it would also be possible for the holding element to act on another element, for example an O-ring, and press it against the mouth inner wall.
  • a plurality of holding elements are distributed uniformly over the circumference of the gripping head on the gripping head. In this way, a very stable hold of the containers on the gripping head is also possible.
  • the gripping element has five holding elements or seven holding elements. This number of holding elements, in particular five holding elements, has proved to be particularly advantageous in order to agree a stable stop with a favorable processing of different inner diameter of the containers.
  • At least one holding element is arranged pivotably about a predetermined pivot axis. By this pivoting process is thereby an area of the holding element moved radially outward to secure the container against the gripping head.
  • the gripping element has a piston body that can be moved in a longitudinal direction of the carrier, wherein a movement of at least one holding element can be triggered by a movement of the piston body.
  • the longitudinal direction of the carrier is also the longitudinal direction of the container, which is arranged on the gripping element. More precisely, by a movement of the piston body, the movement of the holding element is triggered at least also in the radial direction of the gripping head.
  • the piston body is arranged radially within the holding elements.
  • the piston body actuates a plurality of the holding elements and particularly preferably all the holding elements.
  • the piston body has a first guide surface formed in the circumferential direction of the piston body, which cooperates with the holding elements to move them.
  • This may be, for example, inclined surfaces, which urge the holding elements radially outward during the movement of the piston.
  • the gripping head has a covering body, within which the holding elements are at least partially arranged.
  • the covering body may be a cover, which is arranged on the underside of the gripping head and which can be completely inserted into the mouth of the container.
  • an outer circumference of this cover body is adapted to the inner circumference of the preform, and particularly preferably slightly smaller than this Inner circumference or inner cross section.
  • at least a part of the holding elements is permanently arranged inside the covering body, such as, for example, the pivot axis about which the holding elements can be pivoted.
  • the covering body has a multiplicity of openings arranged in the circumferential direction of the covering body, through which the holding elements extend. For example, it is possible for the holding elements to extend radially outwards through the openings for gripping the containers.
  • the cover body has wall sections with a circular segment-shaped outer circumference.
  • the gripping element has a suspension device which biases the piston body relative to the gripping head. It is possible that the suspension device biases the piston body upwards, d. H. away from the container to be gripped.
  • the holding elements have a first guide surface, which cooperates with the piston body to move the holding elements in a first direction radially outwardly upon movement of the piston body and a second guide surface which cooperates with the piston body to the holding elements upon movement of the piston body in a second direction opposite to the first direction radially to move inward.
  • first guide surface which cooperates with the piston body to move the holding elements in a first direction radially outwardly upon movement of the piston body
  • a second guide surface which cooperates with the piston body to the holding elements upon movement of the piston body in a second direction opposite to the first direction radially to move inward.
  • the holding elements or the elements guiding the holding elements are movable exclusively in a radial direction. Furthermore, it is possible that the holding elements are biased by a flexible annular body radially inwardly. In addition, it is possible, for example, that an annular body is used, which can be biased radially outwardly with respect to this annular body radially inwardly arranged holding elements, such as pin-like body and applies in this case to an inner circumference of the thread.
  • Fig. 1 shows a gripping element according to the invention 1.
  • This gripping element 1 in this case has a support 2, on which a gripping head 4 is arranged.
  • This gripping head 4 can be inserted into an opening of a container (not shown) in order to grip it from the inside.
  • the containers (not shown) can be transported, for example transported by a heating device, which heats them before the actual expansion process.
  • the carrier 2 has a base body 10 and a sleeve body 12. By means of a fastening device like a screw 18, the gripping head 4 is screwed to this base body 10. It is in Fig. 1 only a screw means shown, however, it can be provided several, for example three, screw means.
  • the reference numeral 8 refers to a piston body which is movable within a bore or recess 20 in a longitudinal direction L of the gripping element. By this longitudinal movement of the piston body 8, a in Fig. 1 shown retaining element 6a are moved both in the radial direction R outwardly and inwardly.
  • the reference numeral 14 refers to a spring device which the piston body 8 in Fig. 1 biased upward. This suspension device is arranged in a recess 15 of the piston body 8.
  • the piston body 8 has two inclined surfaces or guide surfaces 82 and 84, which serve for the movement of the holding element 6a and also further, not shown holding elements.
  • a further recess 11 is arranged, within which a portion of the piston body 8 is movable.
  • Fig. 2 shows a perspective view of a portion of the gripping element according to the invention, more precisely the gripping head 4, which is inserted into the mouth of the container.
  • the gripping element On its underside, the gripping element on a cover 16, which has a Ein Industriesschräke 16a in the circumferential direction to facilitate insertion into the mouth of the container.
  • the reference numeral 22 refers to wall sections with a circular segment-shaped outer circumference between which openings 23 are respectively provided, through which the holding elements can extend or move. These wall sections 22 are thus part of the covering body 16.
  • Fig. 3a shows a plan view from below of a gripping element according to the invention. It can be seen here five openings 24 in the cover 16 and the lower plate 26 of the cover 16, in which the holding elements 6a - 6e are guided by means of pivot axes or shafts 66. Thus, these openings 24 also define pivot axes S1-S5 about which the holding elements 6a-6e are guided. Furthermore, the areas 29 can be seen in which the in Fig. 1 shown screw extend in the longitudinal direction L.
  • Fig. 3b shows a representation of the gripping element from below, wherein here the lower plate 26 has been removed. It can be seen several segments 22 which are rigidly arranged and have a circular segment-shaped outer cross-section. These segments 22 have partial openings 34 to arrange the cover plate 26 thereto.
  • the suspension device 14 can be seen, which biases the piston body upwards.
  • This suspension device 14 is supported relative to the bottom plate 26 (see. Fig. 3a ).
  • the embodiment of the holding elements 6a - 6e, each with the piston body. 8 work together to be pushed outwards or inwards.
  • Fig. 3c shows a plan view from below of a gripping element according to the invention.
  • the holding elements 6a-6e are, as mentioned above, pivotable about a predetermined pivot axis and in this way, at least a radial movement of the portion 68 of the holding elements is effected radially outwardly or radially inwardly.
  • Fig. 3d shows a further illustration of a complete gripping element from below, in which case also the base body 2 is shown.
  • the holding elements 6a are movable in the radial region r of the gripping element and by this adjustment also the radial tolerance of the containers to be gripped is set.
  • Fig. 4 shows a perspective view of a retaining element 6a.
  • the reference numeral 66 refers to a pivot axis about which the holding element is pivotable.
  • the reference numeral 68 denotes a pressing portion of the holding member 6a which can be pressed against an inner wall of the container.
  • the holding element on an inclined surface or guide surface 62, which with the portion 82 of in Fig. 1 shown piston body 8 cooperates. In a movement of the piston body in the longitudinal direction of Fig. 1 down the surface 62 contacts the surface 82 of the piston body and in this way the holding member 6a is pivoted about the pivot axis 66 and pressed to the outside.
  • the reference numeral 64 denotes a further inclined surface, which cooperates with the portion 84 of the piston body 8 and therefore upon movement of the piston body 8 in the longitudinal direction L of FIG Fig. 1 upwards causes a provision of the retaining element 6a.
  • the reference numeral 65 indicates another guide surface.
  • Fig. 5 shows a further embodiment of a gripping element according to the invention.
  • a carrier 2 is provided, on which a gripping head 4 is arranged.
  • This embodiment also provides a piston body 8, which is displaceable in a longitudinal direction L of the gripper element 1 and is likewise preloaded upward by a spring device 14.
  • the spring means 14 is above, that is arranged in the interior of the carrier 2 here.
  • a cylinder body 36 is provided against which the spring device 14 is supported.
  • the spring device 14 is supported on a projection 8 a of the piston body 8.
  • the piston body 8 has a conical peripheral surface 82, which cooperates with the holding elements 6 a in order to move them in the radial direction R.
  • the holding elements 6a in this case have a contact portion 67 which cooperates with the piston body 8 and the Area 68, which cooperates with the inner wall of the (not shown) container.
  • the reference numeral 7 refers to a biasing device as here an O-ring, which extends in the circumferential direction around all holding elements 6a and which rests in a groove 63 formed by the holding elements. This O-ring biases the individual holding elements 6a-6e radially inwards and thus causes, if the piston body 8 is moved in the longitudinal direction L upwards, a provision of the individual holding elements 6a - 6e.
  • Fig. 6 shows a plan view from below of a gripping element according to the invention in the second embodiment. It can be seen here again the five holding elements 6a - 6e, which at the in Fig. 6 shown situation are biased outwardly, ie in this case the piston body 6 is moved downward. Furthermore, in the illustration, the O-ring 7 is also partially visible, which resets the holding elements in the radial direction R.
  • Fig. 7 shows a perspective view of a gripping head 14.
  • two holding elements 6a, 6e can be seen, which are each disengaged radially outwards.
  • the O-ring 7 is arranged to bias the holding members inwardly.
  • the reference numeral 68 again indicates the contact area, which adjoins the Inner wall of the (not shown) container or preform presses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Manipulator (AREA)
EP10153776.9A 2009-02-20 2010-02-17 Elément de préhension destiné à saisir des récipients en plastique Withdrawn EP2221260A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009009885A DE102009009885A1 (de) 2009-02-20 2009-02-20 Ein Greifelement zum Greifen von Kunststoffbehältnissen

Publications (2)

Publication Number Publication Date
EP2221260A2 true EP2221260A2 (fr) 2010-08-25
EP2221260A3 EP2221260A3 (fr) 2013-04-24

Family

ID=41818851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10153776.9A Withdrawn EP2221260A3 (fr) 2009-02-20 2010-02-17 Elément de préhension destiné à saisir des récipients en plastique

Country Status (4)

Country Link
US (1) US8303009B2 (fr)
EP (1) EP2221260A3 (fr)
CN (1) CN101811362A (fr)
DE (1) DE102009009885A1 (fr)

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Publication number Priority date Publication date Assignee Title
EP2475460B1 (fr) * 2009-09-08 2017-07-19 H-E Parts International Crushing Solutions Pty Ltd Dispositif de levage de manteau et procédé de levage de manteau
DE102011113310A1 (de) * 2011-09-09 2013-03-14 Khs Corpoplast Gmbh Vorrichtung zur Blasformung von Behältern
US8511730B2 (en) 2011-11-18 2013-08-20 The Procter & Gamble Company Apparatus and method for engaging and handling articles of manufacture
DE102012106245B4 (de) * 2012-07-11 2023-01-26 Krones Ag Greifeinrichtung zum Greifen eines Mündungsinnenbereichs eines Kunststoffbehältnisses
CN102795539B (zh) * 2012-08-30 2014-03-05 衢州市依科达节能技术有限公司 一种圆管型颈口吊具
FR3002929B1 (fr) * 2013-03-07 2015-04-10 Sidel Participations "dispositif de transport d'un corps creux comportant des moyens de prehension perfectionnes"
DE102014210011A1 (de) * 2014-05-26 2015-11-26 Fipa Gmbh Innengreifer
CN104526715A (zh) * 2014-11-29 2015-04-22 芜湖银星汽车零部件有限公司 一种零部件抓取用机械臂
NL2015214B1 (en) * 2015-07-23 2017-02-08 Ihc Holland Ie Bv Lifting device for picking up a member from the bottom of the sea.
US10081063B2 (en) * 2015-08-19 2018-09-25 GM Global Technology Operations LLC Expanding locating pin with controlled holding force
CN111943032B (zh) * 2020-07-29 2022-05-31 山东省农业机械科学研究院 用于吊装重型工件的吊具及用于装配渣浆泵的设备及方法
CN113415470A (zh) * 2021-07-09 2021-09-21 浙江任享保温科技股份有限公司 一种玻璃保温杯的装箱装置

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US3265431A (en) * 1964-07-06 1966-08-09 Acme Tool Inc Pipe transfer elevator
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Title
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Also Published As

Publication number Publication date
EP2221260A3 (fr) 2013-04-24
DE102009009885A1 (de) 2010-08-26
US20100213728A1 (en) 2010-08-26
US8303009B2 (en) 2012-11-06
CN101811362A (zh) 2010-08-25

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